B1 · Intermediate
13 min
technologygeopoliticsenergymilitary
El estrecho vigilado: cómo Irán controla el paso más importante del mundo
The Watched Strait: How Iran Controls the World's Most Important Passage
Fletcher breaks down this story in English. Octavio reacts and expands in Spanish. Follow along with the live transcript, tap any word for its translation. Intermediate level — perfect for intermediate learners expanding their range.
So here's something that got buried under the bigger headlines this week, but I think it might actually be the most consequential story of the lot.
Iran's parliament approved a plan to impose tolls on ships passing through the Strait of Hormuz.
Bueno, mira, es una noticia muy importante.
Look, it's a very important piece of news.
El estrecho de Ormuz es un paso muy pequeño entre Irán y Omán.
The Strait of Hormuz is a very small passage between Iran and Oman.
Pero por ese paso viaja casi el veinte por ciento del petróleo del mundo.
But almost twenty percent of the world's oil travels through that passage.
Twenty percent.
And when Octavio says small, he means it literally.
At its narrowest point, the strait is about thirty-three kilometers wide.
That's less than the distance from central London to Heathrow.
Sí, exactamente.
Yes, exactly.
Y ahora Irán dice que los barcos tienen que pagar para pasar.
And now Iran is saying ships have to pay to pass through.
Pero la pregunta real es: ¿cómo puede Irán saber qué barcos pasan por allí?
But the real question is: how can Iran even know which ships are passing through there?
¿Qué tecnología usa para vigilar el estrecho?
What technology does it use to monitor the strait?
Right, and that's the part I want to pull apart today, because there's a whole surveillance infrastructure here that most people have never thought about.
I mean, when you picture a naval chokepoint, you probably picture warships.
But the real control mechanism is technological.
La verdad es que sí.
That's true.
Todos los barcos grandes del mundo usan un sistema que se llama AIS.
All large ships in the world use a system called AIS, which stands for Automatic Identification System.
Son las siglas en inglés de Sistema de Identificación Automática.
The ship sends out a signal with its name, position, and speed.
El barco envía una señal con su nombre, su posición y su velocidad.
So it's basically like a transponder, similar to what aircraft use.
Every commercial vessel above a certain size is legally required to broadcast its identity and location in real time.
Which means, if you have a receiver, you can track everything moving through your waters.
Exacto.
Exactly.
Y Irán tiene muchas estaciones en la costa para recibir esas señales.
And Iran has many stations on the coast to receive those signals.
También tiene radar militar.
It also has military radar.
Entonces, cuando un barco entra en el estrecho, Irán lo sabe inmediatamente.
So when a ship enters the strait, Iran knows about it immediately.
Here's what gets me, though.
AIS was designed as a safety system, to prevent collisions at sea.
It was never meant to be a tool for a government to demand payment from passing ships.
There's something almost poetic about Iran turning a civilian safety protocol into a geopolitical weapon.
Bueno, no es tan nuevo.
Well, it's not entirely new.
Irán usó el AIS para identificar barcos en 2019.
Iran used AIS to identify ships back in 2019.
Capturaron un barco británico, el Stena Impero, porque decían que el barco no siguió las reglas del tráfico marítimo.
They seized a British ship, the Stena Impero, claiming the ship hadn't followed maritime traffic rules.
I remember that.
And the Stena Impero incident was essentially Iran demonstrating, very publicly, that it could reach out and grab a vessel in the strait.
It was a message written in steel.
Sí.
Yes.
Pero ahora la situación es diferente porque hay una guerra.
But now the situation is different because there's a war going on.
Y cuando hay guerra, los barcos hacen cosas interesantes con el AIS.
And when there's a war, ships do interesting things with AIS.
Algunos apagan el sistema para no ser visibles.
Some turn the system off to become invisible.
The so-called dark ships.
And that's been a massive problem in the Russia sanctions regime too, right?
You get these tankers that go dark in the North Sea and reappear somewhere else with a different cargo.
Exacto.
Exactly.
Hay muchos barcos iraníes que hacen eso.
Many Iranian ships do that.
Apagan el AIS, cambian el nombre del barco, y venden petróleo a otros países.
They turn off the AIS, change the ship's name, and sell oil to other countries.
Es un sistema muy común ahora.
It's a very common practice now.
So you have this almost absurd situation where Iran is simultaneously planning to use AIS data to charge tolls from other countries' ships, while its own ships are systematically disabling AIS to evade sanctions.
I mean, the irony is almost too much.
A ver, pero el radar es diferente.
Well, but radar is different.
El radar no necesita que el barco coopere.
Radar doesn't need the ship to cooperate.
Irán puede ver el barco con radar aunque el barco apague el AIS.
Iran can see a ship with radar even if the ship turns off AIS.
El radar funciona con ondas de radio que rebotan en el metal del barco.
Radar works with radio waves that bounce off the ship's metal.
Right, so radar gives you a blip on a screen, you know something's there, but AIS tells you who it is.
You need both.
And Iran has invested heavily in exactly that combination over the past twenty years.
Sí.
Yes.
Y también tienen drones.
And they also have drones.
Irán tiene muchos drones militares ahora.
Iran has many military drones now.
Pueden enviar un dron sobre el estrecho y ver todos los barcos con una cámara.
They can send a drone over the strait and see all the ships with a camera.
Es más barato que usar un barco de guerra.
It's cheaper than using a warship.
And that's a genuinely significant development.
The classic naval power model, you project force with big expensive ships.
But drones change the calculus entirely.
A Shahed drone costs a few thousand dollars.
A frigate costs hundreds of millions.
Exacto.
Exactly.
Y la verdad es que Irán aprendió mucho de la guerra en Ucrania.
And the truth is Iran learned a lot from the war in Ukraine.
Vio cómo los drones podían atacar barcos grandes.
It saw how drones could attack large ships.
Irán vende drones a Rusia, así que también usa esa experiencia para su propia estrategia naval.
Iran sells drones to Russia, so it also uses that experience for its own naval strategy.
Look, let's zoom out for a second, because I think the historical context here is important.
This is not the first time Iran has threatened to control the strait.
The Tanker War of the 1980s, during the Iran-Iraq conflict, was essentially this same confrontation in an earlier technological era.
Bueno, en los años ochenta era diferente.
Well, in the eighties it was different.
Los dos países atacaban barcos con misiles y minas marinas.
Both countries attacked ships with missiles and sea mines.
Fue muy peligroso.
It was very dangerous.
Murieron marineros de muchos países.
Sailors from many countries died.
And the United States eventually got directly involved.
Operation Earnest Will, 1987, the U.S.
Navy started escorting Kuwaiti tankers through the strait under American flags.
It was one of the largest naval convoy operations since World War Two.
Y el año pasado Irán atacó de nuevo una planta de agua en Kuwait.
And last year Iran attacked a water plant in Kuwait again.
Eso muestra que la situación de ahora es similar a los años ochenta, pero con tecnología mucho más avanzada.
That shows the current situation is similar to the eighties, but with much more advanced technology.
No, you're absolutely right about that.
The geography hasn't changed.
The political tensions haven't fundamentally changed.
But the technology has changed everything about how those tensions are expressed and enforced.
Mira, hay otro sistema importante.
Look, there's another important system.
Se llama SIGINT, inteligencia de señales.
It's called SIGINT, signals intelligence.
Los países pueden escuchar las comunicaciones de radio de los barcos.
Countries can listen to the radio communications of ships.
Cuando un capitán habla por radio con su empresa, alguien puede escuchar.
When a captain speaks by radio with his company, someone can be listening.
Signals intelligence in a maritime environment.
And Iran has a sophisticated SIGINT capability, it's been documented.
They have listening stations along the coast, and they've been intercepting maritime communications for decades.
Sí.
Yes.
Pero ahora los barcos modernos también usan comunicaciones por satélite.
But now modern ships also use satellite communications.
El capitán puede hablar con su empresa con una conexión de internet vía satélite.
The captain can talk to his company with a satellite internet connection.
Es mucho más difícil de interceptar.
That's much harder to intercept.
Starlink has actually become a significant factor here.
There are reports of commercial ships in contested waters equipping themselves with Starlink terminals.
Which creates an interesting dynamic, because suddenly Elon Musk's satellite network is part of the geopolitics of the Persian Gulf.
Es que el problema de la tecnología es que los dos lados la tienen.
The thing is, the problem with technology is that both sides have it.
Irán tiene sistemas para vigilar.
Iran has surveillance systems.
Pero los barcos tienen sistemas para comunicarse de forma segura.
But the ships have systems to communicate securely.
Es una carrera tecnológica constante.
It's a constant technological race.
The extraordinary thing is that this toll idea, if Iran actually implements it, would essentially require them to build what amounts to a digital customs checkpoint in international waters.
Which is legally absurd, but technologically it's not impossible.
La verdad es que el derecho internacional dice que los barcos tienen el derecho de paso inocente por los estrechos.
International law says that ships have the right of innocent passage through straits.
Es una ley muy vieja.
It's a very old law.
El estrecho de Ormuz es una de las rutas más protegidas por el derecho internacional.
The Strait of Hormuz is one of the routes most protected by international law.
The right of transit passage, under UNCLOS, the UN Convention on the Law of the Sea.
Iran actually never ratified UNCLOS, which is a detail that matters enormously here.
They can claim they're not bound by it.
Exacto.
Exactly.
Y cuando tienes misiles y drones y radar, la ley internacional es menos importante.
And when you have missiles and drones and radar, international law matters less.
El poder real es tecnológico y militar.
Real power is technological and military.
Los barcos van a pagar si Irán puede detenerlos.
Ships will pay if Iran can actually stop them.
I spent some time in the Gulf in 2006, reporting on the Iranian nuclear standoff.
And I remember talking to a tanker captain, Greek guy, very calm about it all.
He told me the strait was like driving on a motorway with no police.
Everyone knew the rules, no one was sure they'd be enforced.
Eso es una descripción muy buena.
That's a very good description.
Pero ahora hay mucha más tecnología de vigilancia.
But now there's much more surveillance technology.
El precio del petróleo pasó ciento dieciséis dólares por barril esta semana.
The oil price passed a hundred and sixteen dollars a barrel this week.
Los mercados tienen mucho miedo.
The markets are very scared.
And that fear itself is a kind of weapon.
You don't even have to close the strait to cause damage.
You just have to make shipping companies nervous enough that they start rerouting around Africa, adding two to three weeks to every voyage.
Sí.
Yes.
La ruta alternativa es muy larga.
The alternative route is very long.
Los barcos tienen que ir por el cabo de Buena Esperanza, al sur de África.
Ships have to go around the Cape of Good Hope, at the southern tip of Africa.
Es mucho más tiempo y mucho más dinero.
It's much more time and much more money.
Y eso significa precios más altos para todos.
And that means higher prices for everyone.
The same thing happened with the Houthi attacks in the Red Sea.
Shipping companies didn't wait for ships to actually get hit.
The risk calculus changed and they rerouted almost overnight.
Traffic through the Suez Canal dropped by something like forty percent.
Exacto.
Exactly.
Y el Estrecho de Ormuz es más importante que el Canal de Suez para el petróleo.
And the Strait of Hormuz is more important than the Suez Canal for oil.
Si los barcos tienen que ir por África, el precio del petróleo va a subir mucho más.
If ships have to go around Africa, the oil price will rise much more.
Es un problema global.
It's a global problem.
So when you put it all together, here's what we actually have.
Iran has built, over decades, a layered technological surveillance system combining radar, AIS monitoring, drone reconnaissance, and signals intelligence.
And they're now trying to convert that surveillance capability into a revenue stream.
That is genuinely unprecedented.
Bueno, mira, para terminar.
Well, look, to wrap up.
La tecnología cambió la geopolítica del petróleo.
Technology changed the geopolitics of oil.
Antes necesitabas muchos barcos de guerra para controlar un estrecho.
Before, you needed many warships to control a strait.
Ahora puedes hacerlo con radar, drones y computadoras.
Now you can do it with radar, drones, and computers.
Es más barato y más eficaz.
It's cheaper and more effective.
And the lesson for every country that depends on oil arriving reliably, so basically every country, is that the vulnerable point isn't the oil field or the pipeline.
It's thirty-three kilometers of water and whoever has the technology to watch it.
Something to think about, maybe, next time you fill up your car.
Or, you know, add ice to your wine.
No, no, espera.
No, no, wait.
El vino con hielo no tiene nada que ver con el petróleo, Fletcher.
Wine with ice has nothing to do with oil, Fletcher.
Pero sí, es un punto muy serio.
But yes, it's a very serious point.
El control tecnológico del mar es el poder real del siglo veintiuno.
Technological control of the sea is the real power of the twenty-first century.